7x-9=80

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Solution for 7x-9=80 equation: 



7x-9=80

We move all terms to the left:

7x-9-(80)=0

We add all the numbers together, and all the variables

7x-89=0

We move all terms containing x to the left, all other terms to the right

7x=89

x=89/7

x=12+5/7

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